JP6815703B2 - Temporary scaffolding for staircase work - Google Patents

Description

The present invention relates to a temporary scaffold for staircase work for performing interior work such as painting work on the back of stairs.

Conventionally, temporary scaffolding for staircase work for painting the back of stairs has a normal scaffolding, so the passage on the stairs becomes narrow and the flow line (path on the stairs where workers come and go). ) Is not secured. Therefore, there is known a temporary scaffold for work in a staircase, which is configured to secure a flow line by embedding a plurality of female threaded insert hardware in the wall of the staircase and using the insert hardware (for example,). See Patent Document 1 etc.).

Japanese Patent Application Laid-Open No. 7-317303

However, in the temporary scaffold disclosed in Patent Document 1, since a plurality of female threaded insert hardware must be embedded at a predetermined position on the wall, it is necessary to form a hole in the wall for embedding the insert hardware. Since the work labor and man-hours for constructing the scaffolding increase, there is a problem that it is not possible to quickly and easily construct and dismantle the temporary scaffolding for staircase work for performing interior work such as painting work on the back of the stairs. is there.
The present invention provides a temporary scaffold for work in a staircase that can be quickly and easily constructed and disassembled, and that can sufficiently secure a flow line.

The temporary scaffold for work in the staircase according to the present invention is a temporary scaffold for work in the staircase constructed in the staircase under construction, and is vertically between the sasara on each center side of the upper and lower staircase portions in the folded staircase. A plurality of columns provided at predetermined intervals so as to pass through each other and connected to Sasara by connecting members, a work floor support material provided so as to face the back of the stairs from each column, and adjacent columns. It is characterized by having a work floor attached to each work floor support material so as to straddle between the work floor support materials provided in the above, so that it can be constructed and disassembled quickly and easily. , It will be a temporary scaffold for staircase work that can secure a sufficient flow line.
Further, since the work floor support members provided so as to be adjacent to each other in the vertical direction of the columns are extended from the columns in opposite directions and are provided so as to face the back surface of the stairs of each staircase portion, they are opposed to each other. The load from the direction is applied, and the load of the work floor and the work floor support material is applied to the columns in a well-balanced manner, so that a stable work floor can be formed.
Further, since the work floor is installed so that the work floor and the wall surface to be worked are separated from each other, the interior work on the wall surface placed on the work floor can be easily performed.
In addition, since the work floor straddling between the work floor support materials provided on the adjacent columns is formed in a horizontal plane, the interior work on the back of the stairs and the wall surface on the work floor can be safely and easily performed. ..

A side view of the temporary scaffolding for work in the staircase. A perspective view of the temporary scaffolding for work in the staircase as seen from above. A perspective view of the temporary scaffolding for work in the staircase as seen from the side. A view of the temporary scaffolding for work in the staircase from above. The figure which shows the state which the support column and Sasara are connected by the connecting member. The figure which shows the relationship of each bracket provided adjacent to each other in the vertical direction of a column.

As shown in FIGS. 1 to 3, the temporary scaffolding 1 for staircase work constructed in the staircase 1A under construction according to the embodiment is centered on the upper and lower staircase portions 2a and 2b constituting the folded staircase 2. A plurality of columns 5, 5 ... Which are provided at predetermined intervals X so as to pass between the side sasaras 3 and 3 in the vertical direction and are detachably connected to the sasara 3 by the connecting member 4, respectively. Bracket 6 as a work floor support material detachably attached to the back of the stairs of the stairs 2a, 2b from each of the columns 5, 5 ... As a work floor support material, and brackets 6 provided on the adjacent columns 5, 5 , 6 is provided with a work floor 7 attached to each of the brackets 6 and 6 so as to straddle between the brackets and 6.
The predetermined interval X is an interval along the horizontal direction from one of the landings 11 to the other landing 11 between the upper and lower landings 11 and 11.

The folded staircase 2 is, for example, a steel-framed folded staircase. The upper and lower staircase portions 2a and 2b are a staircase portion in which the staircase portion 2a is extended so as to incline upward in one direction, and a staircase portion in which the staircase portion 2b is extended so as to be inclined upward in the other direction on the opposite side of one direction. Is.

The temporary scaffolding 1 for work in the staircase is a scaffolding for performing interior work such as painting the back of the folded stairs 2 and attaching an interior board (assembling a light top material to attach a lightweight board).

The columns 5 are connected so as to be added upward every few meters (for example, 4 m), and the sasara 3 on the center side of the upper and lower staircase portions 2a and 2b is connected over the entire height of the folded staircase 2 in the staircase chamber 1A. , 3 is built so as to extend in the vertical direction.

As the connecting member 4, as shown in FIG. 5, for example, a connecting member called a catch clamp having a maximum load capacity of 2 tons is used.

The bracket 6 is connected to the support column 5 by using a connector 6A, for example, as shown in FIG. The work floor 7 attached to the brackets 6 and 6 adjacent to each other on the left and right in FIG. 1 is provided so as to face the back surfaces of the staircase portions 2a and 2b so as to form a horizontal plane, and the first support column 5 and the first support column 5 thereof. A work floor 7 provided between the second support column 5 provided adjacent to the support column 5 and a third support column 5 provided adjacent to the second support column 5 and a third support column 5 provided adjacent to the second support column 5. As shown in FIG. 1, the work floor 7 provided between the support column 5 and the support floor 5 is provided so as to have a step on the upper and lower sides. That is, the work surfaces on the adjacent work floors 7, 7 ... Are formed like each surface of the terraced field. As shown in FIG. 6, for example, the work floor 7 is attached to the bracket 6 by engaging the engaging claws 7a, 7a ... Provided at the ends with the support shaft 6B of the bracket 6.

As shown in FIG. 4, the sasara 3 to which the support columns 5 are connected by the connecting member 4 is the sasara 3 and 3 on the central side opposite to the wall surface 10 side of the upper and lower staircase portions 2a and 2b.

As shown in FIG. 1, four columns 5 are erected at the staircase portion 2a or the staircase portion 2b between the upper and lower landings 11 and 11 at a predetermined interval X.

As shown in FIGS. 1 to 4, the landing 11 is provided with a support 50 dedicated to the landing, in addition to the support 5 that is passed over the entire height of the folded stairs 2 in the staircase 1A. Then, a work floor 70 that faces parallel to the back side (lower surface) of the landing 11 is provided between the bracket 6 provided on the support 5 located near the landing 11 and the bracket 6 provided on the support 50 dedicated to the landing. ..

Further, in FIG. 1, 12 is an entrance / exit to the first basement floor, and 13 is an entrance / exit to the first floor above ground.

Further, as shown in FIG. 6, the brackets 6 and 6 provided so as to be adjacent to each other in the vertical direction of the columns 5, 5 ... Extend from the columns 5 in opposite directions to the upper and lower staircase portions 2a. It is provided so as to face the back surface of 2b.

Further, the work floors 7 and 70 are installed so as to be separated from the wall surface 10.

The procedure for constructing the temporary scaffolding 1 for working in the staircase according to the embodiment will be described.
First, the columns 5 extend in the vertical direction in the space between the Sasara 3 provided on the side opposite to the wall side of the upper staircase portion and the Sasara 3 provided on the side opposite to the wall side of the lower staircase portion. Is provided. For example, the support column 5 is provided so as to extend from the bottom to the top of the folded stairs 2 by sequentially adding single pipe poles having a predetermined length upward. Further, a plurality of columns 5 extending in the vertical direction are arranged between the landing 11 on the lower floor and the landing 11 on the upper floor at a predetermined interval X. Between the landing 11 on the lower floor and the landing 11 on the upper floor, a plurality of columns 5, 5 ... Prolonged in the vertical direction arranged at a predetermined interval X are connected to the sasara 3 by using the connecting member 4. connect.
Next, brackets 6 are provided on each of the columns 5, 5, and a work floor 7 is provided so as to straddle between a pair of brackets 6, 6 provided so as to be located on the same horizontal plane on each of the adjacent columns 5, 5. , Adjacent work floors 7 and 7 are installed so as to form a horizontal stepped surface facing the back surface of the folded stairs 2. A dedicated support column 50 is provided in each landing 11, and a work floor 70 is installed between the bracket 6 provided in the support column 5 located near the landing 11 and the bracket 6 provided in the support column 50 dedicated to the landing.

According to the temporary scaffolding 1 for staircase work according to the embodiment, it is only necessary to connect the support columns 5 to the sasara 3 and install the work floor 7 between the brackets 6 and 6 provided on the adjacent columns 5 and 5. It can be constructed and disassembled quickly and easily.
In addition, unlike the conventional temporary scaffolding for staircase work, the legs of the scaffolding are not installed on the stairs, and there are no obstacles on the stairs, so that a sufficient flow line can be secured. It will be possible to provide a safe construction site environment.

Further, since the brackets 6 and 6 provided so as to be adjacent to each other in the vertical direction of the support column 5 are provided so as to extend from the support column 5 in opposite directions, a load is applied to the support column 5 from opposite directions. .. That is, the loads of the work floor 7 and the bracket 6 are applied to the support columns 5 in a well-balanced manner, and a stable work floor 7 can be formed.

Further, since the work floors 7 and 70 are installed so that the work floors 7 and 70 and the wall surface 10 to be worked are separated from each other, the interior work on the wall surface 10 placed on the work floors 7 and 70 can be easily performed. And you will be able to do it safely.

Further, since the work floor 7 straddling between the brackets 6 and 6 provided on the adjacent columns 5 and 5 is formed in a horizontal plane, the back surface or the wall surface 10 of the folded stairs 2 placed on the work floor 7 is formed. Interior work such as painting and installation of decorative materials can be performed safely and easily.

Further, since the adjacent work floors 7 and 7 are provided in a stepped shape so as to form a horizontal stepped surface, the stepped surface behind the folded stairs 2 having different heights is placed on each work floor 7. Interior work such as painting and installation of decorative materials can be performed safely and easily.

In the temporary scaffold for staircase work disclosed in Patent Document 1, since a plurality of female threaded insert hardware must be embedded at a predetermined position on the wall, the insert hardware is embedded in the wall surface finishing work using the scaffold. It becomes impossible to finish the finished part. Therefore, after the scaffold is disassembled, the insert hardware must be covered with a plug, and there is also a problem that the insert hardware portion and the other portion on the wall surface are in different finished states.
On the other hand, in the embodiment, since the wall surface 10 is not processed only by connecting the support column 5 and the sasara 3, the finishing work of the wall surface 10 can be easily and neatly performed.

Further, in the temporary scaffolding for staircase work disclosed in Patent Document 1, since the scaffolding plate is installed diagonally, it is placed on the scaffolding plate as compared with the configuration in which the work floor 7 is installed horizontally as in the embodiment. There is also a problem that the work to be done is difficult and the safety is lacking.

In the present invention, at least two or more columns 5 may be provided. If a total of two columns 5 and 5 are provided, one at a position near the lower landing 11 and one near the upper landing 11, brackets 6 and 6 adjacent to each other at these columns 5 and 5 are stepped. The work floor 7 may be installed diagonally corresponding to the inclination of the staircase portions 2a and 2b.
Further, the structure of the temporary scaffold for working in the staircase of the present invention can also be used as a scaffold for an escalator.

1 Temporary scaffolding for staircase work, 1A staircase, 2 Folded stairs,
2a, 2b Stairs, 3 Sasara, 4 Connecting members, 5 Supports,
6 bracket (work floor support material), 7 work floor, 10 wall surface.

Claims (4)

It is a temporary scaffolding for staircase work to be built in the staircase under construction.
A plurality of columns provided at predetermined intervals so as to pass vertically between the sasaras on the central side of the upper and lower staircases in the folded stairs, and each of which is connected to the sasara by a connecting member.
Work floor support material provided so as to face the back of the stairs from each support,
A temporary scaffold for work in a staircase, which is provided with a work floor attached to each work floor support material so as to straddle between the work floor support materials provided on each adjacent column. Claim 1 is characterized in that each work floor support member provided so as to be adjacent to each other in the vertical direction of the support column is provided so as to extend from the support column in opposite directions and face the back surface of the staircase of each staircase portion. Temporary scaffolding for staircase work as described in. The temporary scaffolding for staircase work according to claim 1 or 2, wherein the work floor is installed so that the work floor and the wall surface to be worked are separated from each other. The temporary scaffold for staircase work according to any one of claims 1 to 3, wherein a work floor straddling between the work floor support members provided on the adjacent columns is formed in a horizontal plane. ..

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